根据下面的文字资料回答 71~75 题 n the following essay,each blank has four choices.Choose

10 查阅

根据下面的文字资料回答 71~75 题 n the following essay,each blank has four choices.Choose the most suitable one from the four choices and write down in the answer sheet.

Open Shortest Path First(OSPF)is a( 1 )routing algorithm that( 2 )work done on the OSI IS-IS intradomain routing protocol.This routing,as compared to distance-vector routing,requires( 3 )processing power.The Dijkstra algorithm is used to calculate( 4 )OSPF routing table updates only take place when necessary,( 5 )at regular intervals.

第6题:文中( 1 )处正确的答案是( )。

A.distance-vector

B.link-state

C.flow-based

D.selective flooding

参考答案:

BOSPF(Open Shortest Path First)是一个内部网关协议(Interior Gateway Protocol,IGP),用于在单一自治系统(Autonomous System,AS)内决策路由。与RIP相对,OSPF是链路状态路由协}义,而RIP是距离矢量路由协议。链路是路由器接口的另一种说法,因此oSPF也称为接口状态路赢协议。0SPF通过路由器之间通告网络接口的状态来建立链路状态数据库,生成最短路径树,每个0SPF路由器使用这些最短路径构造路由表。

软考中级